Java: Allow uncovered slots ClusterScan

[jamesx-improving]

Issue link

This Pull Request is linked to issue (URL): #2436

Checklist

Before submitting the PR make sure the following are checked:

• This Pull Request is related to one issue.
• Commit message has a detailed description of what changed and why.
• Tests are added or updated.
• CHANGELOG.md and documentation files are updated.
• Destination branch is correct - main or release
• Commits will be squashed upon merging.

[jamesx-improving]

Due to the fact that we can't create/stop valkey clusters in the middle of a Java test, and because the testing of this feature requires dedicated cluster with special configuration, the automatic test is not included in this PR.

Created Issue #2860 to track the progress of implementing the ability to create/terminate cluster in the middle of a Java test. Will finish CI testing of this feature afterwards.

I've done test locally and the result is expected.

Here's a screenshot of the test result:

[yipin-chen]

Suggested change

	* If set to True, the scan will perform even if some slots are not covered by any node. It's
	* If set to true, the scan will perform even if some slots are not covered by any node. It's

Also next line.

[tjzhang-BQ]

Very much a nitpick, just some grammar things:

• "If set to true, the scan will proceed/be performed/be executed even if..."
• "However, it is important to note that in this mode, the scan cannot guarantee coverage of all keys in the cluster and it loses the ability to validate its progress"

Up to you if you want to adopt any of these.

[yipin-chen]

LGTM, after minor comment update.
If possible, can you please provide manual testing steps?

[yipin-chen]

This PR will be merged into the main branch along with PR #2814 and PR #2815. Once merged, all fixes for issue #2436 will be backported to the Release-1.2 branch.

[Yury-Fridlyand]

LGTM, but I think we need to freeze this PR until we can run tests for this feature in CI.

[yipin-chen]

LGTM, but I think we need to freeze this PR until we can run tests for this feature in CI.

I have asked James to create an issue to track the missing capability for cluster creation in Java. As discussed in this morning's sync-up meeting, we will merge this PR with proof of manual testing.